Year Number
1950 75.843
1951 75.348
1952 74.846
1953 74.213
1954 73.598
1955 73.161
1956 73.949
1957 74.609
1958 75.274
1959 76.018
1960 76.845
1961 78.466
1962 79.931
1963 81.273
1964 82.486
1965 83.538
1966 84.741
1967 85.776
1968 86.562
1969 86.995
1970 87.048
1971 87.352
1972 87.195
1973 86.688
1974 85.985
1975 85.168
1976 84.583
1977 83.845
1978 82.961
1979 81.916
1980 80.722
1981 79.705
1982 78.555
1983 77.291
1984 75.92
1985 74.446
1986 73.208
1987 71.789
1988 70.27
1989 68.749
1990 67.276
1991 65.92
1992 64.663
1993 63.444
1994 62.17
1995 60.808
1996 59.655
1997 58.388
1998 57.078
1999 55.848
2000 54.788
2001 54.382
2002 54.053
2003 53.766
2004 53.474
2005 53.155
2006 52.455
2007 51.914
2008 51.52
2009 51.266
2010 51.102
2011 50.563
2012 50.184
2013 49.856
2014 49.458
2015 48.956
2016 48.83
2017 48.433
2018 47.932
2019 47.55
2020 47.378
2021 47.189
2022 47.26
2023 47.459
2024 47.58
2025 47.535
2026 47.557
2027 47.42
2028 47.191
2029 46.995
2030 46.9
2031 46.937
2032 47.032
2033 47.177
2034 47.345
2035 47.52
2036 47.779
2037 48.036
2038 48.29
2039 48.542
2040 48.792
2041 49.096
2042 49.368
2043 49.624
2044 49.887
2045 50.168
2046 50.531
2047 50.893
2048 51.224
2049 51.472
2050 51.615
2051 51.746
2052 51.767
2053 51.712
2054 51.632
2055 51.559
2056 51.589
2057 51.603
2058 51.615
2059 51.645
2060 51.704
2061 51.901
2062 52.112
2063 52.333
2064 52.555
2065 52.773
2066 53.112
2067 53.439
2068 53.744
2069 54.008
2070 54.223
2071 54.504
2072 54.716
2073 54.903
2074 55.128
2075 55.424
2076 55.882
2077 56.399
2078 56.94
2079 57.45
2080 57.899
2081 58.38
2082 58.793
2083 59.152
2084 59.48
2085 59.79
2086 60.145
2087 60.466
2088 60.758
2089 61.026
2090 61.274
2091 61.574
2092 61.851
2093 62.112
2094 62.362
2095 62.604
2096 62.916
2097 63.222
2098 63.523
2099 63.819
2100 64.113